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2009 Buick Lacrosse CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Buick REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Technical Service Bulletins
- Specifications
- Brake Service
- Driveline, U-Joint & CV Axles Replacement
- Tire Pressure Monitoring System
- Starter & Alternator Replacement
- Cabin Air Filter Locations & Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
BRAKE SERVICE PROCEDURES FOR 2009 Buick Lacrosse AUTOMOBILES
Disc Brakes -> AC-Delco Single Piston Front Disc Brake -> Description
Vehicle: 2009 Buick Lacrosse CXL 3.8 V6 GAS
The caliper has a single piston and is mounted to the support bracket by two mounting bolts, Figs. and . The caliper assembly slides on the two mounting bolts. Upon brake application, fluid pressure against the piston forces the inboard sho...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2009 Buick Lacrosse AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 2009 Buick Lacrosse CXL 3.8 V6 GAS
To prevent personal injury and/or component damage, do not allow the weight of the vehicle to load the front wheels, or attempt to operate the vehicle, when the wheel drive shaft(s) or wheel drive shaft nut(s) are removed. To do so may cause the inner bearing race to separate, resulting in damage to brake and suspension components and loss of vehicle control.
Wheel drive shaft boots, seals and clamps should be protected from sharp objects any time service is performed on or near the wheel drive shaft(s). Damage to the boot(s), the seal(s) or the clamp(s) may cause lubrican...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2009 Buick Lacrosse AUTOMOBILES
Relearn Procedures -> Keyless Entry Transmitter Or DIC Method -> Scan Tool Method
Vehicle: 2009 Buick Lacrosse CX 3.8 V6 GAS
Keyless Entry Transmitter Or DIC Method
- On models with standard ignition switch, place the ignition switch in the On position.
- On models with keyless ignition switch, place the ignition switch in the Accy position.
- On all models, using the keyless entry transmitters press the lock and unlock buttons at the same time until a horn chirp sounds indicating the learn mode has been actuated. The left front turn signal will also be illuminated.
- Using the DIC (Driver Information Center) press and release the Info button until the Tire Learn message is indicated on the DIC display. Depres...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2009 Buick Lacrosse AUTOMOBILES
Starter, Replace
Vehicle: 2009 Buick Lacrosse Super 5.3 V8 GAS
- Disconnect battery ground cable from battery.
- Remove starter solenoid BAT terminal nut and remove positive battery cable from starter motor.
- Remove engine harness terminal from starter motor.
- Disconnect starter motor...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2009 Buick Lacrosse AUTOMOBILES
Cabin Air Filter Service -> General Motors Corp./Saturn -> 2004-08 Grand Prix, 2005-09 LaCrosse & 2006-07 Monte Carlo & 2006-09 Impala
Vehicle: 2009 Buick Lacrosse Super 5.3 V8 GAS
Under normal operating conditions the cabin air filter should be replaced every 12 months or 15,000 miles or at Maintenance II as indicated on the DIC (Driver Information Center). In dusty areas change the cabin air filter more often.
- Place the windshield wipers in the up position by turning the ignition switch Off when the wipers reach the desired position.
- Open the hood.
- Lift the righthand side of the rear hood seal from the flange in the area of the righthand air inlet grill...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2009 Buick Lacrosse AUTOMOBILES
General Motors Corp./Saturn Cars -> Tire Pressure Monitoring System (TPMS) Warning Indicator -> 2008-09 LaCrosse -> Keyless Entry Transmitter Or DIC Method -> Relearn -> Reset -> Scan Tool Method
Vehicle: 2009 Buick Lacrosse CXL 3.8 V6 GAS
Reset
The Low Tire Pressure warning lamp and/or the DIC (Driver Information Center) Low Tire Pressure message can be cleared by adjusting the tires to the recommended pressure and driving the vehicle at a speed above 25 mph for more that 2 minutes.
Relearn
Keyless Entry Transmitter Or DIC Method
- On models with standard ignition switch, place the ignition switch in the on position.
- On models with keyless ignition switch, place the ignition switch in the ACC position.
- On all models, using the keyless entry transmitters press the lock and unlock buttons at the same time until a horn chi...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2009 Buick Lacrosse AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 2009 Buick Lacrosse Super 5.3 V8 GAS
Inlet
- Drain cooling system into a suitable container.
- Reposition heater hose inlet clamp at heater pipe using hose clamp pliers J 38185 or equivalent. Cap or plug cooling components to prevent system contamination.
- Remove heater inlet hose from heater pipe.
- Reposition heater core inlet hose clamp at heater core using hose clamp pliers J 38185 or equivalent.
- Remove hose from vehicle.
- Reverse procedure to in...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2009 Buick Lacrosse AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2009 Buick Lacrosse Super 5.3 V8 GAS
- Remove passenger side diagonal brace bolts and brace, if more clearance is required.
- Reposition underhood bussed electrical center (UBEC), if more clearance is required.
- Rotate tensioner clockwise using suitable tool to remove...
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TECHNICAL SERVICE BULLETINS FOR 2009 Buick Lacrosse AUTOMOBILES
OEM TSB listings for most 2009 Buick Lacrosse cars and light trucks sold in the U.S. from 1985+.
Document: BluetoothA® Option Availability Vehicle: 2009 Buick Lacrosse CX 3.8 V6 GAS Auto Systems: |
Document: Information on Driveline Clunk Noise When Shifting Between PARK and DRIVE, PARK and REVERSE or DRIVE and REVERSE Vehicle: 2009 Buick Lacrosse CX 3.8 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2009 Buick Lacrosse AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2009 Buick Lacrosse cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 2009 Buick Lacrosse cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 2009 Buick Lacrosse cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 2009 Buick Lacrosse cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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